公开(公告)号：US20150146868A1

公开(公告)日：2015-05-28

申请号：US14611553

申请日：2015-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianping TU ,  Jie LV ,  Xiang Wang

IPC: H04B3/32 ,  H04L25/02

CPC classification number: H04B3/32 ,  H04L25/0224

Abstract: The present invention provides a method and an apparatus for training a Vector coefficient of a vectored digital subscriber line, where the method includes: after a handshake phase is executed for a joining line, calculating, by using a pilot estimation method, an initial precoding coefficient and an initial cancellation coefficient that represent interference from the joining line to a normal working line; and after a channel discovery phase is executed for the joining line, compensating the initial precoding coefficient and the initial cancellation coefficient by using a compensation factor, to obtain a precoding coefficient and a cancellation coefficient that represent the interference from the joining line to the normal working line, wherein the compensation factor is obtained according to a signal power change or a signal phase change of the joining line. The present invention improves efficiency of Vector coefficient training.

Abstract translation: 本发明提供了一种用于训练向量数字用户线的向量系数的方法和装置，其中该方法包括：在对接合线执行握手阶段之后，通过使用导频估计方法来计算初始预编码系数 以及表示从接合线到正常工作线的干扰的初始消除系数; 并且在针对接合线执行频道发现阶段之后，通过使用补偿因子来补偿初始预编码系数和初始消除系数，以获得表示从接合线到正常工作的干扰的预编码系数和消除系数 线，其中根据接合线的信号功率变化或信号相位变化获得补偿因子。 本发明提高了矢量系数训练的效率。

公开(公告)号：US20150229356A1

公开(公告)日：2015-08-13

申请号：US14692420

申请日：2015-04-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianping TU

IPC: H04B3/32 ,  H04L12/24 ,  H04L12/26 ,  H04B3/487

CPC classification number: H04B3/32 ,  H04B3/487 ,  H04L41/0677 ,  H04L43/0876 ,  H04M3/22 ,  H04M3/306 ,  H04M11/062

Abstract: Embodiments of the present invention relate to a method and an apparatus for sending a single-ended loop testing SELT measurement signal, and a control device. The method for sending a SELT measurement signal includes: aligning a synchronization symbol of a digital subscriber line on which a SELT diagnosis needs to be performed with a synchronization symbol of at least one DSL line for data transmission, where the synchronization symbol of the digital subscriber line on which a SELT diagnosis needs to be performed and the synchronization symbol of the at least one digital subscriber line for data transmission are uplink or downlink synchronization symbols; and carrying a SELT measurement signal over the aligned synchronization symbol of the DSL line on which a SELT diagnosis needs to be performed, where the SELT measurement signal is used to detect transmission quality or a line fault of the DSL line.

Abstract translation: 本发明的实施例涉及发送单端环路测试SELT测量信号的方法和装置，以及控制装置。 用于发送SELT测量信号的方法包括：将需要执行SELT诊断的数字用户线路的同步符号与用于数据传输的至少一条DSL线路的同步符号对准，其中数字用户的同步符号 需要执行SELT诊断的线路，用于数据传输的至少一个数字用户线路的同步符号是上行链路或下行链路同步符号; 并且在需要执行SELT诊断的DSL线路的对准同步符号上携带SELT测量信号，其中SELT测量信号用于检测DSL线路的传输质量或线路故障。